Churn.



R. D. SIMPSON.

GHUBN.

APPLIUATION'IILBD APB.16, 1911.

1,004,305. Patented Sept. 26,1911.

2 SHEETS-SHEET 1.

jf-h Witnesses Inventor Y W Attorneys OI-U WASIIINUTON D C R. D.SIMPSON.

011111111. I APPLICATION FILED APR. 15, 1911.

1,004,305. Patented Sept. 26; 1911.

2 8HEBTSSHEET 2.

y vz Witnesses Inventor Attorneys h t asy access can be had to thedasher 25 i through the driving shaft and the ball bear.-

5.. might add here with this device could be ROBERT D. SIMPSON, OFCOLUMBUS, OHIO.

CHURN.

. Specification of Letters Patent.

Patented Sept. 26, 1911.

Application filed April 15, 1911. Serial No. 621,375.

To all whom it may concern:

the same is to support the drlvlng shaft and Be it known that I, ROBERTD. SIMPSON, a citizen of the United States, residing at Columbus, in thecounty of Franklin and State of Ohio, have invented a new and usefulChurn, of which the following is a specifly wheel on ballbearings andmount them rotatably and sliclably within a yoke across The churn bodyis by preference a cylins .40.. between two or more wlngs 12 that arefixed 55. removable from the body and connecting it the top of the churnbody, and connect the shaft detachably with the dasher staff so and theinterior of the churn body. These objects I carry out by theconstruction hereinafter more fully described and claimed, and as shownin the drawings wherein Figure 1 is a side elevation of this churncomplete, with the churn body in sections to show its interiormechanism. Fig. 2 is a side elevation viewed from the left of Fig. 1.Fig. 3 is an enlarged central vertical section ings. Figs. 4 and 5 arestill further enlarged views of the ball bearing alone, the former beingin section and the latter a top plan view.

drical metal member 5 stood on endand havin a cover 6 removably closingits upper end, the cover being provided with a central hole 7 and insidethe body its bottom is provided at its center with a step bearing 8within which is mounted the pointed lower end 9 of the dasher rod 10.Upon the latter near its lower end is fixed the dasher 11 which rotateson a vertical axis within the body 5 in the usual manner. When the coveris removed the cream is put into the body, after which rotation of thedasher converts into butter as usual. I

employed perhaps equally well for the making of ice cream, and withslight modification it might become a washing machine, or in factanything wherein it is necessary to rotate or agitate some fluid orpartially fluid agent within a fixed upright body. The essential featureof the present invention lies in mounting the dasher rod at its lowerend in a step bearing whereby it is at its upper end with the powershaft in a detachable manner, so that when the cover 6 is removed theconnection can be broken and the entire body and the dasher rod anddasher withdrawn from the remainder of the mechanism which I will nowdescribe. Supported on a base 15, upon which the body rests, is a yoke16 into and through which the body may be passed in a well known manner,and in a bearing 17 in one side of this yoke is mounted the shaft of thedriving wheel 18 which may be rotated by power although in the presentinstance I have shown it as provided with a crank handle 19. This wheelis here shown as a gear wheel, meshing with another gear wheel 20 on acounter shaft 21 that is mounted in bearings 22 rising from the top ofthe yoke 16, and the inner end of this counter shaft carries a bevelgear 23 which is of about the size of the driven gear 20, the latterbeing so proportioned with reference to the driving gear 18 that onerotation of said driving gear will rotate the counter shaft and itsgears several times and therefore at a high rate of speed. The numeraldesignates the power shaft which stands vertical, and secured to theupper end thereof is a fly wheel 31 which stands horizontal and extendsacross the upper side of the gear wheel 23. The hub of this fly wheel isformed into a gear wheel 33 meshing with the driving gear 23, andthrough said hub passes a set screw 32 by means of which both the flywheel and its gear-hub are detachably connected with the upper end ofthe power shaft 30. Said shaft extends downward through the top of theyoke 16 and has a notch 34 in its lower end, and the dasher shaft 10extends upward through the hole 7 in the cover 6 of the body 5 and has apin 35 across its upper end. The latter is of a size to pass into thelower end of the power shaft 30 as seen in dotted lines in Fig. 1, forwhich purpose said shaft, especially at its lower end, is made tubular.By this means it will be clear that the power shaft may be detachablyconnected with the upper end of the dasher rod 10, and therefore whenthe driving wheel 18 is rotated, the counter shaft 21 is rotated at ahigher rate of speed and the intermeshing gears cause the power shaft 30to drive the dasher rod 10 and with it the dasher at considerable speedwithin the churn body. Vvhen it is desired to gain access to theinterior of the latter, however, it is obvious that the upper end of therod 10 must be disconnected from the lower end of the shaft 30, and thisdisconnection is rendered possible by means of the notch in one and thepin in the other, save it becomes necessary for the power shaft to beraised in its bearings.

The yoke 16 is preferably a stout casting, and formed with it throughthe center of its cross bar is a tubular post 40 whose bore is of a sizeto loosely receive the shaft 30. The upper end of this post is headed asat 41, and upon the head rests the ball bearing best seen in Figs. 4 and5. This bearing comprises an annular cup-shaped member 42 havinginturned lips 43 at the upper edge of its upright wall 44, and an innercomplementary member 45 whose upper horizontal wall 46 is peripherallyof a size to fit within said wall 44 where it is held by said lips 43.Both walls are dished on their contiguous surfaces to form ball races,and between the latter is disposed a series of balls 47. As seen in Fig.3 the outer member 42 normally rests upon the head 41 of the tubularpost 40, the inner member surrounds the power shaft 30, and a downwardlyprojecting collar or flange 48 and the driven gear 30 extends betweenthe inner ends of the lips 43 and rests upon the top of the horizontalwall 46 of the inner member of this ball bearing. Finally, a pin orother detachable fastening 50 is passed through the power shaft 30beneath the lower end of the tubular post 40, and in such position thatthe entire shaft 30 and with it the fly wheel and driven gear can beraised within said post so as to disengage the notch 34 from the pin 35when desired.

All parts of this machine are by preference made of metal, excepting thebase 15 possibly, and if of metal it is suitably treated so as toprevent rust and to give the necessary strength to the various placeswhere it is liable to be subjected to strain.

As I lay no claim to the dasher, neither its construction nor itsmaterial need be amplified.

The use of such a machine as either a churn, ice cream freezer, washingmachine, or for any other similar purpose is well known and needs nodescription here, fur ther as to how the operator shall gain access tothe interior. lVhen this is desired, the fly wheel is lifted until thepin 50 strikes the lower end of the tubular post 40 at which time itwill be found that the teeth of the gears 33 and 23 have becomedisengaged and the flange 48 has been lifted off of the ball bearing,and also the notch 34 has been disengaged from the pin 35 and the upperend of the dasher rod 10 is free from the socket in the lower end of thedriving shaft 30. The entire churn body 5 with its cover 6 can then bedrawn laterally out of the yoke, the cover removed, and the dasher andits contents withdrawn. After they are replaced, the body and its coverare again pushed in under the yoke, and while holding the upper end ofthe dasher rod with one hand the fly wheel and its connected parts aremanipulated by'the other hand so as to drop the socket at the lower endof the power shaft over the upper end of the dasher and reengage thenotch with the pin. Such movement drops the gear wheel 33 intorengagement with the driving gear, and permits the flange 48 to descendbetween the lips 43 of the outer member of the ball bearing and restsupon the wall 46 of the inner member thereof. Thus it will be seen thatthe Weight of the heavy fly wheel is sustained by the inner member ofthe ball bearing, and the ball communicates this weight to the outermember thereof which in turn is sustained by the head 41 of the tubularpost 40, and hence this weight is not communicated to the dasher rod andby it to the point 9 in the step bearing 8 and these members are notworn out. Rotation of the driving wheel 8 by power or by hand impartsrapid rotation to the counter shaft 21, and the latter through the gears23 and 33 communicates rotation through the power shaft which in turndrives the dasher in the manner which will be clear.

It will be obvious that the direction of rotation is not important tothe present invention, and this I consider one of its important andvaluable features, because in many cases it becomes desirable afterrotat-, ing the dasher in one direction to revert the direction ofrotation for certain reasons. I have shown the dasher 11 mounted uponthe dasher rod 10 by means of a set screw, and

this is a desirable construction in many cases where it becomesdesirable to remove the dasher from the rod for certain purposes as forinstance for the substitution of another dasher when other work is to bedone than churning.

The wings 12 are only theoretically illustrated in the drawings, and mayin fact be omitted or replaced by others of different and for differentpurposes.

I reserve the right to amplify detailsand to make such changes as comewithin the spirit of my invention, and of course the materials andproportion of parts are essential to this patent.

What is claimed is:

1. In a churn, the combination with an upright body, a cover thereforhaving a hole therein, a dasher rod having its upper end normallyprojecting through said hole, of a yoke under which the body is adaptedto be slid and having a tubular post on the cross bar of the yoke, anupright driving shaft mounted rotatably and slidably within said postand having the lower end thereof adapted to engage the upper end of thedasher rod, a gear member secured upon the upper end of said shaft, anda driving mechanism mounted upon the yoke including an upright gearmeshing with said geared member when the latter is in its lowermostposition.

2. In a churn, the combination with a yoke having an upright tubularpost, a driving shaft mounted slidably and rotatably therein, a bevelgear secured to the upper end of said shaft and having a flangedepending therefrom, of a ball bearing in two members whereof theoutermost rests upon theupper end of said post and has inturned lips atthe upper edge of its wall and the innermost surrounds said drivingshaft and has its horizontal wall engaged under said lips, the flange ofthe bevel gear being adapted to pass between the inner ends of said lipsand rest upon said horizontal wall,

of the innermost member of the bearing, and a driving mechanism mountedupon the yoke and including an upright bevel gear adapted to engage theformer gear when the latter descends so that the flange rests upon theball bearing.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

ROBERT D. SIMPSON.

Witnesses:

JOSEPH P. EAGLESON, ALVIN A. ALBERT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

